The bike was designed with a clutch for a reason--- to be used--- and it should be 'most' of the time.
You certainly *can* easily do upshifts without the clutch by blipping the throttle-- but it's really just for more 'performance' riding to shave a little time between gears-- or when you're hanging off the bike and can't reach the clutch----
So you can do it--- but it should not be considered 'normal operating procedure' for most riders and most conditions.